My ball is out right now so I don't want to disturb her but I checked one of my boas enclosures.
Herpstat is set at 83 and temp probe is reading 82.7 - Zikar by the door is reading 84 - laser thermometer read 95-98 on "hot side" and that's where the boa is hanging out right now. During the day he's anywhere he wants - by the door - cool or hot side shelf - right under the Zikar unit.